<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
            <title></title>
            </head>
    <body>
        <input type="button" value="login" onclick="log()" />
    </body>
<!--    <script>-->
<!--        function  log(){-->
<!--            console.log(1);-->
<!--        }-->
<!--    </script>-->
</html>
